configure firewall – the easy way.

2013-04-24 1 min read Fedora Linux

It is good practice to keep iptables/firewall enabled. But configuring it is difficult, do you agree. Not any more 🙂

Install firewall-config

sudo yum install firewall-config

This will install a GUI application, which you can run with “Firewall” application in the dash or with “firewall-config” in terminal. It is pretty straight forward to use this tool, even if you don’t have much knowledge on Firewall/iptables.

ss – anothre utility to investigate sockets.

2013-04-11 1 min read Fedora Linux

ss is :

ss is used to dump socket statistics. It allows showing information similar to netstat. It can display more TCP and state informationsthan other tools.

This comes in iproute package in Fedora. So, to install this you would need to install “iproute” if not installed already.

sudo yum install iproute

Now, once you have done that you can look at the man page to check what all you can see with ss. but here are some examples:

steam on Linux – for Fedora

2013-02-22 1 min read Fedora

The Fedora Project logo (Photo credit: Wikipedia)

I was trying to get steam on linux on my Fedora box. Headed over to steam website, but was astonished to find only Ubuntu client over there. A little googling presented me with the developer website blog of valvesoftware.com. So, here is the link for you, just in case you are searching for the same:

Allow incoming/outgoing ports on iptables

2012-11-27 2 min read Fedora

Schematic for the packet flow paths through Li... — Schematic for the packet flow paths through Linux networking and Xtables (Photo credit: Wikipedia)

Last couple of years, I just used to disable iptables on my system, this time I decided not to disable it and keep it enabled.

So far so good, now comes the tricky part, I have http server enabled on my system and since this is on local network with already firewall and other security in place so I can allow all incoming to my system and similarly I need to enable XDMCP outgoing. So, I can add the rules like this :

Xnest – XDMCP protocol and virtual DM

2012-10-22 2 min read Fedora

An IceWM Xephyr session is running inside a Fl... — An IceWM Xephyr session is running inside a Fluxbox Xephyr session, which is running inside another IceWM Xephyr session, which is running under Linux Mint 8. (Note that Fluxbox is also licensed under the MIT license by the Fluxbox developers, but IceWM is released under the GPL and LGPL by Marko Ma?ek.) (Photo credit: Wikipedia)

XDMCP is protocol that allows remote connections and provides you with a working Display Manager like KDE, GNome, et al. Its a remote connection protocol that is mostly enabled on Solaris and disabled on most Linux boxes. If you need to have a remote session where you need the X Display to open some GUI applications then you can have a connection with the remote server with XDMCP.

Ubuntu – Really force remove a package.

2012-09-17 1 min read Linux

I was trying to remove a package on one of the Ubuntu installations the other day and was not able to do so. I tried google and tried all the options mentioned in various forums like “-f”, purge, reinstall and few others but nothing helped. I kept getting some errors about some files being already deleted. I also tried “set -e” in the prompt but the only result I got was terminal also getting killed.

using iTerm color schmes with gnome-terminal.

2012-08-29 1 min read Fedora

the OS X Lion install key (Photo credit: blakespot)

Found this great page and thought of sharing this:

http://www.sharms.org/blog/2012/08/using-iterm-2-themes-with-gnome-terminal/

When using this, you will need to install :

https://github.com/caseyhoward/nokogiri-plist

and when you install this, you will find that the permissions for the files are not appropriately set, so go to your ruby gems directory or the installation directory for nokogiri-plist and change the permissions.

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